1200101231 has 8 divisors (see below), whose sum is σ = 1381556640. Its totient is φ = 1021148928.

The previous prime is 1200101191. The next prime is 1200101261. The reversal of 1200101231 is 1321010021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1200101231 - 2¹⁰ = 1200100207 is a prime.

It is a super-2 number, since 2×1200101231² = 2880485929295430722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200101261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 624746 + ... + 626663.

It is an arithmetic number, because the mean of its divisors is an integer number (172694580).

Almost surely, 2^1200101231 is an apocalyptic number.

1200101231 is a deficient number, since it is larger than the sum of its proper divisors (181455409).

1200101231 is a wasteful number, since it uses less digits than its factorization.

1200101231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1251553.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 1200101231 is about 34642.4772641911. The cubic root of 1200101231 is about 1062.6884500062.

Adding to 1200101231 its reverse (1321010021), we get a palindrome (2521111252).

The spelling of 1200101231 in words is "one billion, two hundred million, one hundred one thousand, two hundred thirty-one".